Vapi

docs.vapi.ai/quickstart/introduction
Score: 86 out of 100, grade B86
Grade B
Last checked: April 3, 2026 · Rerun
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Simulation: Fern // bud
Day 0
CategoryVoice AI
Checks passed14/22Warnings1Failed5

Vapi scores 86/100 (Grade B), passing 14 of 22 checks (64%). The documentation is broadly accessible to AI agents but has 6 areas that could be improved to better serve automated tooling.

# Agent Score Fix Report — Vapi
URL: https://docs.vapi.ai/quickstart/introduction
Score: 86/100 (Grade B)

I need help improving the AI-readiness of the documentation at https://docs.vapi.ai/quickstart/introduction.
Agent Score found 5 failing checks and 1 warnings.

## Failing Checks (5)
- [content-discoverability] Llms Txt Directive: No llms.txt directive found in any of 10 sampled pages
- [page-size] Page Size Markdown: 3 of 9 pages exceed 100K chars (max 948K)
- [page-size] Page Size Html: 3 of 10 sampled pages convert to over 100K chars (max 948K, 3% boilerplate)
- [page-size] Content Start Position: 1 of 10 sampled pages have content starting past 50% (worst 74%)
- [observability] Markdown Content Parity: 4 of 9 pages have substantive content differences between markdown and HTML (avg 20% missing)

## Warnings (1)
- [content-discoverability] Llms Txt Valid: llms.txt contains parseable links but doesn't fully follow the proposed structure: https://docs.vapi.ai/quickstart/introduction/llms.txt: No H1 heading found, No blockquote summary found, No markdown links found; https://docs.vapi.ai/llms.txt: No blockquote summary found; https://docs.vapi.ai/docs/llms.txt: No blockquote summary found, No heading-delimited sections found, No markdown links found

## Fix Instructions

For each issue above, please:
1. Analyze the documentation site at https://docs.vapi.ai/quickstart/introduction
2. Implement the specific fix
3. Verify the fix would cause the check to pass

### Common fixes:
- **No llms.txt**: Create /llms.txt following https://llmstxt.org — list all doc pages in markdown format
- **No .md URL support**: Configure your docs platform to serve pages at equivalent .md URLs (e.g. /docs/quickstart.md)
- **No content negotiation**: Return markdown when request includes Accept: text/markdown header
- **Large page size**: Reduce nav boilerplate, inline scripts, and repetitive markup
- **No sitemap**: Generate /sitemap.xml listing all documentation URLs
- **Auth walls**: Ensure docs pages return 200 without requiring login cookies or tokens
- **No Last-Modified header**: Configure your server/CDN to include Last-Modified response headers
- **Tab content hidden**: Ensure tabbed content is rendered in the HTML (not JS-only) so agents can read all variants

## Run afdocs Locally for More Detail

To get deeper visibility into what's failing, run afdocs against your docs:

  npx afdocs https://docs.vapi.ai/quickstart/introduction --fixes --verbose

- **--fixes**: Adds "Fix:" lines to the output for each warn/fail check with actionable remediation steps
- **-v, --verbose**: Shows per-page details (specific URLs, character counts, error codes) for checks with issues — useful for per-URL visibility into what's failing
CHECK RESULTS

How your docs scored

page-size-markdown3 of 9 pages exceed 100K chars (max 948K)
page-size-html3 of 10 sampled pages convert to over 100K chars (max 948K, 3% boilerplate)
content-start-position1 of 10 sampled pages have content starting past 50% (worst 74%)
rendering-strategyAll 10 sampled pages contain server-rendered content
auth-gate-detectionAll 10 sampled pages are publicly accessible
auth-alternative-accessAll docs pages are publicly accessible; no alternative access paths needed
tabbed-content-serialization3 tab group(s) across 1 of 10 sampled pages; all serialize under 50K chars
markdown-code-fence-validityAll 52 code fences properly closed across 12 pages
section-header-quality1 page(s) with tabs found, but no section headers inside tab panels to evaluate
markdown-content-parity4 of 9 pages have substantive content differences between markdown and HTML (avg 20% missing)
llms-txt-freshnessllms.txt covers 100% of 1 sitemap doc pages
cache-header-hygieneAll 13 endpoints have appropriate cache headers
llms-txt-directiveNo llms.txt directive found in any of 10 sampled pages
llms-txt-validllms.txt contains parseable links but doesn't fully follow the proposed structure: https://docs.vapi.ai/quickstart/introduction/llms.txt: No H1 heading found, No blockquote summary found, No markdown links found; https://docs.vapi.ai/llms.txt: No blockquote summary found; https://docs.vapi.ai/docs/llms.txt: No blockquote summary found, No heading-delimited sections found, No markdown links found
llms-txt-existsllms.txt found at 3 location(s)
llms-txt-sizellms.txt is 38,484 characters (under 50,000 threshold)
llms-txt-links-resolveAll 10 same-origin sampled links resolve (280 total links)
llms-txt-links-markdown10/10 same-origin sampled links point to markdown content (100%)
markdown-url-support9/9 sampled pages support .md URLs (100%)
content-negotiation9/9 sampled pages support content negotiation (100%)
http-status-codesAll 10 sampled pages return proper error codes for bad URLs
redirect-behaviorNo redirects detected across 10 sampled pages

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